The Oatey retrofit flashing for pipes and masts without disconnecting the obstruction. This flashing is made of flexible, weatherproof, EPDM rubber. Serviceable temperature range of -30 deg. F. to 250 deg. F. Easily installed by wrapping around the existing pipe and fastening down onto most roof decks. The pipe diameter markings on the flexible cone are in inches and millimeters. Fits 1/4" to 4".